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Cometic Chevrolet Small Block Brodix 4.200in Bore .040in MLS All 12-23 Deg Head Gasket
Cometic Gasket
Cometic Gasket

Cometic Chevrolet Small Block Brodix 4.200in Bore .040in MLS All 12-23 Deg Head Gasket

$87.53

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Cometic Gasket is known for well-built sealing solutions. This .040in MLS head gasket fits many Chevrolet Small Block V8 engines.

Key Features

  • Fits a wide range of Chevrolet Gen-1 Small Block V8 engines and other compatible vehicles.
  • Multi-Layer Steel (MLS) construction offers increased strength and resistance to corrosion.
  • Embossed outer layers are coated with Viton, a heat-resistant rubber material rated up to 482°F.
  • Compressed operating thickness is 0.040 inches.
  • Features a 4.200-inch bore size.
  • Suitable for Brodix 12-23 degree cylinder heads.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Cometic Gasket has a reputation for making solid sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example for your Chevrolet Gen-1 Small Block V8. If you're rebuilding the top end of your engine, especially with aftermarket heads like Brodix, a good head gasket is crucial for sealing combustion pressures and coolant passages. This gasket is designed with multiple layers of stainless steel for strength and corrosion resistance, and it features an embossed outer layer coated with Viton, a heat-resistant rubber material that can handle tough sealing environments without needing additional sealants.

The compressed thickness on this gasket is 0.040 inches, and it has a 4.200-inch bore, making it suitable for a range of high-output engine builds. It's designed to work well with both aluminum heads and aluminum blocks, or aluminum heads and cast iron blocks, and can handle the shearing forces that can occur between different metals. The center shim layer is uncoated stainless steel, and the Viton coating on the outer layers is rated for temperatures up to 482 degrees Fahrenheit. The water ports are undersized to allow for customization when using aftermarket heads.

This gasket fits a wide variety of vehicles from the early 1980s, including models like the Chevrolet C10, Camaro, and Corvette, as well as GMC trucks and other makes. It's a well-built option for anyone looking for reliable sealing performance in a performance or rebuilt engine application.

Specifications

Brand
Cometic Gasket
Manufacturer Part #
C5403-040
UPC
191070017644

Frequently Asked Questions

Cometic Chevrolet Small Block Brodix 4.200in Bore .040in MLS All 12-23 Deg Head Gasket

$87.53